Challenge of the Unknown
Our rough guess is there are 38,500 words in this book.
At a pace averaging 250 words per minute, this book will take 2 hours and 34 minutes to read. With a half hour per day, this will take 5 days to read.
How long will it take you?
This book will take an estimated to read at a reading speed averaging words per minute. With 30 minutes per day, this will take to read.
Enter your reading speedYou can take one of our WPM reading speed tests to find your reading speed.
Create a free account to track your reading progress, build your reading list, and set reading goals.
Author
Contributions
- Wendayne Ackerman - Translator
Publication
1973 - Ace
Language
English
Translation of: Aktion gegen Unbekannt
Word Count
38,500 words, Guess
Page Count
154 pages
Physical Format
Paperback
Identifiers
- ISBN-100441660150
- ISBN-139780441660155
- Goodreads646980
- LibraryThing1074144
- Better World BooksW7-CLR-360
and 1 more
- Open LibraryOL7526233M
Subjects
Series Statement
- Perry Rhodan #32
Other Editions
- Challenge of the Unknown
Reader Reviews
No reviews yet for this book.
Be the first to share your thoughts!